Electromagnetic therapeutic apparatus.



No. 748,373. PATENTED NOV. 3, 1903,

" E. BACHELET.

ELECTROMAGNETIC THERAPEUTIC APPARATUS.

APPLICATION FILED OCT. 2, 1903.

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I I AVAYAIAWA L vi vi WITNESSES: 5 fNVE/VTOR g ww c ow %MM PatentedNovember 3, 1903.

' PATENT O FICE.

EMILE BACHELET, OF TACOMA, WASHINGTON.

ELECTROMAGNETIC THERAPEUTIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 743,373, dated November3, 1903.

Application filed October 2, 1908. Serial No. 175,505. (No model-l Toall whom it may concern:

Be it known that I, EMILE BACHELET, of Tacoma, in the county of Pierceand State of Washington, have invented certain new and usefulImprovements in Electromagnetic Therapeutic Apparatus; and I herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, which formpart of this specification.

This invention relates to electromagnetic therapeutics, it beinga novelefficacious apparatus for treatingv diseases by application ofelectromagnetism in a novel manner.

The object of the invention is to enable powerful electromagneticcurrents or lines of force to be directed through the human body or anypart thereof without direct contact of the body with the magnetic polesor anodes and to enable the magnetic waves to be concentrated anddirected at will through the patient without necessarily having anydirect application of apparatus to his body, so that the patient may beplaced wholly or partly within a magnetic field and a magnetic currentdirected through his entire body or any portion thereof withoutnecessarily interfering with his physical comfort or occupation.

The invention in brief comprises two elec- 0 tromagnets arranged inseries and some disto wit: The north pole of one magnet must be inopposition to the south pole of the other, so that the center of themagnetic field will pass axially through both magnets and be of greatestintensity, the operator by adj ust- .ing the magnets positivelydetermining the able generator either direct or by use of a flow ofgreatest magnetic force through any portion of the body of the patient.Preferably I employ an intermittent or alternating current, which may bederived from any suittransformer. I may also use a direct current; butin the latter case I prefer to place an interrupter in the circuit, asit is in many cases desirable to use an alternating or intermittentcurrent for the purpose of breaking down diseased tissues or relievingcongested conditions of the blood. I may also use an interrupter inconnection with an alternating current to render the vibrations moreacute and increase the length of the field or lines of force. Themagnets may be energized by connecting them in series or multiple orindependently, and I would consider it within the scope of my inventionto use a permanent magnet in place of one of the electromagnets.

The magnets need not necessarily be of the same power or size, the vitalfeature of the invention being the employment of magnets acting inseries, so that the operator by properly positioning them can direct theflow of greatest lines of force through any part of the body of thepatient in any position of the latter without encumbering him withunsightly and uncomfortable contacts or anodes. I further provide meansfor varying the strength of the magnets without changing the source orwasting thecurrent by cutting out or in more or less of the magnetcoils.I have used solenoids without cores with excellent results, but "can usethe cores, if desired. Theipreferred form of electromagnet without acore is shown in my application for Patent No. 169,200, filed August 12,1903. V

The accompanying drawings illustrate diagrammatically my improvedapparatus in several difierent arrangements, and I will now describe thesame more in detail with reference thereto, and the claims following thedescription of the operation of the apparatus summarize the novelfeatures for which protection is desired.

Figure 1 is a diagram illustrating two electromagnets connected inseries and acting in series. Fig. 2 is a similar view illustrating twoelectromagnets acting in series and connected in multiple. Fig. 3 is asimilar view illustrating two magnets acting in series and energized byindependent currents. Fig. 4 is a detail view indicating a mode of usingthe apparatus. Fig. 5 is a diagram showing the preferred mode of windingthe magnets.

In the drawings, A A designate two elecrs L24 .tromagnets which areseparated, but arranged in seriesthat is, with the north pole of onemagnet adjacent to the south pole of the other. It therefore followsthat the magnets coact in establishing a common field of force in whichthe magnetic lines of force will be found thickest and continuousbetween the adjacent opposed poles of the magnets, as indicated by thearrows. An Object interposed between the two magnets therefore will besubjected to the greatest number and power of the lines of forcegenerated by both magnets.

In Fig. 1 both magnets are connected in series with a common source B ofelectrical energy, which is shown as a battery, but may be any othersuitable mechanical or chemical generator. An interrupter C is placed inthe circuit, so that the current will be broken or undulating, therebycreating pulsations of the magnetic field, as is well known, andintensifying the action of the magnets.

In Fig. 2 the magnets A A are similarly arranged to act together or inseries; but

they are connected in multiple, their south poles being connected to oneterminal of the generator D, while their north poles are connected tothe other terminal of said generator. hating-current dynamo or may beany other kind of generator. Interrupters may be placed in the circuitsof the magnets, if desired.

In Fig. 3 the magnets A A are in series; but magnet A is in a circuitenergized by a generator E and magnet A in a circuit energized by agenerator F, said generators E and F being of dilterent powers or types.Interrupters may also be placed in the circuits of the magnets in Fig.3, if desired. In allthese modifications it will be noted that themagnets act in series, so that the axial lines of force pass throughboth magnets or flow directly from one magnet to and through the other,and therefore it is obvious that by moving one magnet relatively to theother, so thatadirect line between their opposed poles will pass throughthe body of the patient, such part of the patient will be traversed bythe greatest number of direct axial lines of force without the magnetsactually contacting with the patient.

One manner of treatment is indicated in Fig. 4, in which the magnets areplaced at opposite sides of a room and the patient seated in the chairtherebetween will be subjected to the action of the magnetic currentflowing directly from magnet A to magnet A,

as indicated in the drawings. It will be seen that by my apparatus thelines of force developed by electromagnet A, for example, can beconcentrated or prolonged in the direction of magnet A, and thus given adefinite direction, enabling the operator to certainly control anddirect their application to the patient, and this is the principalfeature of the invention, and I do not restrict myself to This generatoris preferably an alterthe employment of a second electromagnet A for thepurpose of elongating or directing the magnetic field or lines of forcegenerated by magnet A. Any other device which will accomplish thedesired object may be substituted for magnet A within the scope of myinvention. The possibility of varying and localizing the application ofthe magnetic currents by varyingthe relative positions of the magnetswill be obvious.

In Fig. 5 I have indicated a preferred construction of the magnetsin'that the magnet is preferably wound in a flat widev annular coil orring, which is divided into sections connected with contacts a, any oneof which can be brought into electrical communication with binding-posta by theswitch-arm Ct. The other terminals of the coils are allconnected to a common terminal a and therefore by shifting switch a moreor less of the magnet-coils are cut into the circuit, and consequentlygreater or less magnetic force is generated by the magnet. While thesame effect could be realized by introduction of a rheostat in thecircuit, this construction of magnet economizes the power and is morecompact and desirable than a rheostat, particularly when the apparatusis made in portable form and operated by batteries.

In Fig. 5 a core A is indicated in the magnet, Which core should belaminated when used; but I do not restrict myself to the employment ofcored magnets.

Having thus described my invention, what I therefore claim as new, anddesire to secure by Letters Patent thereon, is-

1. In an electromagnetic therapeutic apparatus, an electromagnet, andmeans for prolonging the lines of force generated by said magnet andgiving direction thereto, substantially as specified.

2. An electromagnetic therapeutic apparatus comprising an electromagnet,means mechanically disconnected from said electromagnet for prolongingand directing the lines of force generated thereby, and means forvarying the strength of the magnetic field, substantially as described.

3. In an electromagnetic therapeutic apparatus, two magnets arranged inseries mechanically disconnected but for the purpose and substantiallyas described.

4. In an electromagnetic therapeutic apparatus, twomechanicallydisconnected electromagnets arranged in series and means forenergizing the magnets, substantially as described.

5. In an electromagnetic therapeutic apparatus, two electromagnetsarranged in series and an interrupter, substantially as described.

6. In an electromagnetic therapeutic apparatus, an electromagnet, and asecond magnet in series therewith, said magnets being mechanicallydisconnected but relatively adjustable.

7. In an electromagnetic therapeutic appa ratus two eleetromagnetsacting in series,and relatively adjustable, and aninterrupter,snbstantially as. described.

8. In an electromagnetic therapeutic apparatus; two electromagnetsacting in series but mechanically disconnected, means for energizingsaid magnets, and means for varying the strength of the magnets,substantially as described.

9. In an electromagnetic therapeutic apparatus; two electromagnetsacting in series,and relatively adjustable, means for energizingsaidelectromagnets, and an interrupter, substantially as described.

10. In an electromagnetic therapeutic apparatus, an electromagnet, meansfor energizing it, and an interrupter; with a second magnet acting inseries with the first magnet and adjustable relatively thereto.

ing of coils separated in space but connected together electrically andexcited by means of an alternating or vibratory current wherebyalternating or vibrating magnetic Waves are sent to the space betweensaid coils.

In testimony that I claim the foregoing as my own I'affix my signaturein presence of two witnesses.

EMILE BAOHELET.

In presence of- SIEGFRIED F. SAHM, ARTHUR E. DOWELL.

